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CC1101收发时间问题

Baogang Wu
Prodigy 30 points
Other Parts Discussed in Thread: CC1100, CC1101

halSpiStrobe(CCxxx0_STX);     //进入发送模式发送数据

// Wait for GDO0 to be set -> sync transmitted
while (!CC1100_GDO0);     //用时约28ms
// Wait for GDO0 to be cleared -> end of packet
while (CC1100_GDO0);     //用时约37ms

用CC1101发送数据的时候，上面第一个while用了28ms左右，第二个用了37ms左右，

所用时间怎么会这么长？谁能帮忙解释一下，感激不尽。